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| www.rohm.com 2010.05 - rev.b ? 2010 rohm co., ltd. all rights reserved. 1/17 middle power class-d speaker amplifiers analog input / btl output class-d speaker amplifier BD5424EFS description BD5424EFS is a 20w + 20w stereo class-d power amplifier ic, developed for space-saving and low heat-generation applications such as low-profile tv sets. the ic employs stat e-of-the-art bipolar, cmos, and dmos (bcd) process technology that eliminates turn-on resistance in the output power stage and internal loss due to line resistances up to an ultimate level. with this technology, the ic has achieved high efficiency of 91% (10w + 10w output with 8 ? load), which is the top class in the industry. the ic, in addition, employs a compact back-su rface heat radiation type power package to achieve low power consumption and low heat generation and elim inates necessity of installing an external radiator, up to a total output of 40w. this product satisfies both needs for drastic downsizing, low- profile structures and powerf ul, high-quality playback of the sound system. features 1) a high efficiency of 91% (10w + 10w output with 8 ? load), which is the highest grade in the industry and low heat-generation. 2) an output of 20w + 20w (17v, with 8 ? load) is allowed without an external heat radiator. 3) driving a lowest rating load of 3.6 ? is allowed. 4) pop noise upon turning power on/off and power interruption has been reduced. 5) high-quality audio muting is implemented by soft-switching technology. 6) an output power limiter function limits excessive output to speakers. 7) high-reliability design provided with built-in protection circuits against high temperatures, against vcc shorting and gnd shorting, against reduced-voltage, and against applying dc voltage to speaker. 8) a master/slave function allowing synchroniza tion of multiple devices reduces beat noises. 9) adjustment of internal pwm sampling clock frequencie s (350khz to 500khz) allows easy protective measures against unwanted radio emission to am radio band. 10) a compact back-surface heat radiation type power package is employed. htssop-a44 (5mm 7.5mm 1.0mm, pitch 0.8mm) absolute maximum ratings a circuit must be designed and evaluated not to exceed absolute maximum rating in any cases and even momentarily, to prevent reduction in functional performances and thermal destruction of a semiconductor product and secure useful life and reliability. the following values assume ta =25 . for latest values, refer to delivery specifications. parameter symbol ratings unit conditions supply voltage v cc +20 v pin 7, 8, 15, 16, 29, 30, 37, 38, 40 (note 1, 2) power dissipation p d 2.0 w (note 3) 4.5 w (note 4) input voltage for signal pin v in -0.2 ~ +7.2 v pin 1, 44 (note 1) input voltage for control pin v cont -0.2 ~ vcc+0.2 v pin 20, 24 (note 1) input voltage for clock pin v osc -0.2 ~ +7.2 v pin 23 (note 1) operating temperature range t opr -40 ~ +85 storage temperature range t stg -55 ~ +150 maximum junction temperature t jmax +150 (note 1) a voltage that can be applied with reference to gnd (pins 11, 12, 33, 34, and 43) (note 2) pd and tjmax=150 must not be exceeded. (note 3) 70mm 70mm 1.6mm fr4 one-sided glass epoxy board (back copper foil 0%) installed. if used under ta=25 or higher, reduce 16mw for increase of every 1 . the board is provided with thermal via. (note 4) 70mm 70mm 1.6mm fr4 both-sided glass epoxy board (back copper foil 100%) installed. if used under ta=25 or higher, reduce 36mw for increase of every 1 . the board is provided with thermal via. no.10075ebt04
technical note www.rohm.com 2010.05 - rev.b ? 2010 rohm co., ltd. all rights reserved. 2/17 BD5424EFS the following values assume ta =25 . check for latest values in delivery specifications. parameter symbol ratings unit conditions supply voltage v cc +10 ~ +18 v pin 7, 8, 15, 16, 29, 30, 37, 38, 40 minimum load resistance r l 3.6 ? (note 5) (note 5) pd should not be exceeded. except otherwise specified t a = 25 , v cc = 12v, f in = 1khz, r g = 0 ? , r l = 8 ? , mutex="h", ms="l", sdx="h". for latest values, refer to delivery specifications. parameter symbol limits unit conditions whole circuit circuit current 1 (sampling mode) i cc1 30 ma with no signal circuit current 2 (muting mode) i cc2 12 ma mutex = ?l? control circuit ?h? level input voltage v ih 2.3 ~ 12 v sdx, mutex, ms ?l? level input voltage v il 0 ~ 0.8 v sdx, mutex, ms audio circuit voltage gain g v 28 db p o = 1w maximum output power 1 (note 6) p o1 10 w thd+n = 10% maximum output power 2 (note 6) p o2 20 w vcc=17v, thd+n = 10% total harmonic distortion (note 6) thd 0.1 % p o = 1w, bw=20hz ~ 20khz crosstalk ct 85 db p o = 1w, rg = 0 ? , bw = ihf-a output noise voltage (sampling mode) v no 80 vrms rg = 0 ? , bw = ihf-a residual noise voltage (muting mode) v nom 35 vrms rg = 0 ? , bw = ihf-a, mutex = ?l? mute attenuation g vm 98 db po =1w, bw =ihf-a, mutex = ?l? internal sampling clock frequency f osc 350 khz ms = ?l? (in master operation) (note 6) the rated values of items above indicate average performances of the device, which largely depend on circuit layouts, components, and power supplies. the reference values are those applicable to the device and components directly installed on a board speci fied by us. technical note www.rohm.com 2010.05 - rev.b ? 2010 rohm co., ltd. all rights reserved. 3/17 BD5424EFS 0.01 0.1 1 10 100 0.001 0.01 0.1 1 10 100 output power (w) thd+n (%) 100hz 1khz 6khz vcc=12v rl=8 bw=2020khz 0.01 0.1 1 10 100 10 100 1000 10000 100000 frequency (hz) thd+n (%) vcc=12v r l =8 po=1w bw=2020khz 0 5 10 15 20 25 30 35 40 10 100 1000 10000 100000 frequency (hz) voltage gain (db) vcc=12v r l =8 po=1w l=33h c=0.47f c=0.1f -100 -80 -60 -40 -20 0 10 100 1000 10000 100000 frequency (hz) crosstalk (db) vcc=12v r l =8 po=1w bw=2020khz -100 -80 -60 -40 -20 0 0.001 0.01 0.1 1 10 100 output power (w) crosstalk (db) vcc=12v r l =8 fin=1khz bw=2020khz 0 5 10 15 20 25 8 101214161820 vcc (v) output power (w) thd=10% thd=1% r l =8 fin=1khz (1) under stereo operation (r l =8 ) fig. 1 thd+n output powe r fig. 2 thd+n frequency fig. 3 voltage gain - frequency fig. 4 crosstalk - frequency fig. 5 crosstalk - output powe r fig. 6 output power - power supply voltage technical note www.rohm.com 2010.05 - rev.b ? 2010 rohm co., ltd. all rights reserved. 4/17 BD5424EFS 0 10 20 30 40 50 60 70 80 90 100 0 5 10 15 20 output power (w/ch) efficiency (%) vcc=12v r l =8 fin=1khz 0 10 20 30 40 50 60 70 80 90 100 0 5 10 15 20 output power (w/ch) efficiency (%) vcc=10v r l =8 fin=1khz 0 10 20 30 40 50 60 70 80 90 100 0 5 10 15 20 25 output power (w/ch) efficiency (%) vcc=18v r l =8 fin=1khz 0 1 2 3 0 5 10 15 20 25 30 35 40 45 50 total output power (w) icc (a) vcc=10v vcc=12v vcc=18v r l =8 fin=1khz -140 -120 -100 -80 -60 -40 -20 0 10 100 1000 10000 100000 frequency (hz) noise fft (dbv) vcc=12v r l =8 o??r bw=2020khz 0 10 20 30 40 50 60 70 80 90 100 81012141618 vcc (v) icc (ma) sampling mute r l =8 o??r fig. 7 efficiency - output powe r fig. 8 efficiency - output powe r fig. 9 efficiency - output powe r fig. 10 current consumption - output powe r fig. 11 current consumption - power supply voltage fig. 12 fft of output noise voltage without signal without signal technical note www.rohm.com 2010.05 - rev.b ? 2010 rohm co., ltd. all rights reserved. 5/17 BD5424EFS mutex pin 20 tm pin 26 10msec/div 2v/div 5v/div 10v/div vcc=12v r l =8 po=500mw fin=500hz mutex pin 20 tm pin 26 10msec/div 2v/div 5v/div 10v/div vcc=12v r l =8 po=500mw fin=500hz speaker output speaker output fig. 13 wave form when releasing soft-mute fig. 14 wave form when activating soft-mute vcca vhold pin 27 vcc=12v r l =8 po=500mw fin=3khz 20msec/div 2v/div 5v/div 5v/div tm pin 26 vcca vhold pin 27 vcc=12v r l =8 po=500mw fin=3khz 2msec/div 2v/div 5v/div 5v/div tm pin 26 speaker output speaker output fig. 15 wave form on instantaneous power interruption (20msec / div) fig. 16 wave form on instantaneous power interruption (2msec / div) vcc=12v r l =8 po=5w thd+n=10% fin=1khz r2=91k r3=22k 200 sec/div 5v/div soft clip soft clip speaker output fig. 17 wave form on output power limiter function (po = 5w) technical note www.rohm.com 2010.05 - rev.b ? 2010 rohm co., ltd. all rights reserved. 6/17 BD5424EFS 0 5 10 15 20 25 30 8 101214161820 vcc (v) output power (w) thd=10% r l =6 fin=1khz 0 10 20 30 40 50 60 70 80 90 100 0 5 10 15 20 25 output power (w/ch) efficiency (%) vcc=10v r l =6 fin=1khz 0 10 20 30 40 50 60 70 80 90 100 0 5 10 15 20 25 output power (w/ch) efficiency (%) vcc=12v r l =6 fin=1khz 0 10 20 30 40 50 60 70 80 90 100 0 5 10 15 20 25 30 output power (w/ch) efficiency (%) vcc=18v r l =6 fin=1khz 0 1 2 3 4 0 5 10 15 20 25 30 35 40 45 50 55 60 total output power (w) icc (a) vcc=10v vcc=12v vcc=18v r l =6 fin=1khz (2)under stereo operation (r l =6 ? ) fig. 18 output power - power supply voltage fig. 19 efficiency - output powe r fig. 20 efficiency - output powe r fig. 21 efficiency - output powe r fig. 22 current consumption - output powe r dotted lines of the graphs indicate c ontinuous output power to be obtained on musical signal source or by installing additional heat sinks. technical note www.rohm.com 2010.05 - rev.b ? 2010 rohm co., ltd. all rights reserved. 7/17 BD5424EFS 0 5 10 15 20 25 30 8 1012141618 vcc (v) output power (w) thd=10% r l =4 fin=1khz 0 10 20 30 40 50 60 70 80 90 100 0 5 10 15 20 output power (w/ch) efficiency (%) vcc=10v r l =4 fin=1khz 0 10 20 30 40 50 60 70 80 90 100 0 5 10 15 20 output power (w/ch) efficiency (%) vcc=12v r l =4 fin=1khz 0 10 20 30 40 50 60 70 80 90 100 0 5 10 15 20 25 30 35 40 output power (w/ch) efficiency (%) vcc=18v r l =4 fin=1khz 0 1 2 3 4 5 6 0 1020304050607080 total output power (w) icc (a) vcc=10v vcc=12v vcc=18v r l =4 fin=1khz (3)under stereo operation (r l =4 ? ) fig. 23 output power - power supply voltage fig. 24 efficiency - output powe r fig. 25 efficiency - output powe r fig. 26 efficiency - output powe r fig. 27 current consumption - output powe r dotted lines of the graphs indicate c ontinuous output power to be obtained on musical signal source or by installing additional heat sinks. technical note www.rohm.com 2010.05 - rev.b ? 2010 rohm co., ltd. all rights reserved. 8/17 BD5424EFS BD5424EFS (max 18.85 include burr ) 18. 5 0.1 lot no. type 1pin mark ( 6.0) ( 5.0) 0.85 44 23 1 22 1.0 max ( unit: mm ) top view in1 pl m t 1 pl m t 2 bsp1p vccp1p vccp1p out1p out1p gndp1 gndp1 out1n out1n vccp1n bsp1n warning error mutex n.c. in2 gnda fil a fil p vcca bsp2p vccp2p vccp2p out2p out2p gndp2 gndp2 out2n out2n vccp2n vccp2n bsp2n vhold tm rosc ms osc vccp1n output dc v oltage protection output short protection 7 8 9 10 6 2 3 4 5 1 11 12 13 14 15 16 17 18 19 20 21 22 25 24 23 28 27 26 30 29 31 32 33 34 35 36 37 38 39 40 41 42 43 44 driver 1p driver 1n pow er limit sof t m ute filp pw m 1 pw m 2 driver 2p driver 2n fila error mute control under v oltage protection h i gh t emperature protecti on ramp generator clock control n.c. protections & l ogi c pow er- of f detector vcca gnda warning pl m t 3 pl m t 4 control sd sd x fig. 28 pin assignment diagram fig. 29 outer dimensions and inscriptions of htssop-a44 package technical note www.rohm.com 2010.05 - rev.b ? 2010 rohm co., ltd. all rights reserved. 9/17 BD5424EFS no. symbol pin voltage pin description internal equalizing circuit 1 44 in1 in2 3.5v ch1 analog signal input pin ch2 analog signal input pin input audio signal via a capacitor. 2 plmt1 3.5v voltage-to-current conversion pin for output power limiter function connect a register. 3 plmt2 - current-to-voltage conversion pin for output power limiter function connect a register. 4 plmt3 - current-to-voltage conversion pin for output power limiter function connect a register. 5 plmt4 3.5v bias pin for output power limiter function connect a register and a capacitor. technical note www.rohm.com 2010.05 - rev.b ? 2010 rohm co., ltd. all rights reserved. 10/17 BD5424EFS no. symbol pin voltage pin description internal equalizing circuit 6 bsp1p - ch1 positive bootstrap pin connect a capacitor. 7, 8 vccp1p vcc ch1 positive power system power supply pin 9, 10 out1p vcc ~ 0v ch1 positive pwm signal output pin connect with output lpf. 11, 12 gndp1 0v ch1 power system gnd pin 13, 14 out1n vcc ~ 0v ch1 negative pwm signal output pin connect with output lpf. 15, 16 vccp1n vcc ch1 negative power system power supply pin 17 bsp1n - ch1 negative bootstrap pin connect a capacitor. 18 warning h: 5v l: 0v warning output pin pin to notify operation warning. h: under warning l: normal operation 19 error h: 5v l: 0v error output pin a pin for notifying operation errors. h: error l: normal operation 20 mutex - audio mute control pin h: mute off l: mute on technical note www.rohm.com 2010.05 - rev.b ? 2010 rohm co., ltd. all rights reserved. 11/17 BD5424EFS no. symbol pin voltage pin description internal equalizing circuit 21 sdx - shutdown control pin h: shutdown off l: shutdown on 22 n.c. - n.c. pin nothing is connected with ic internal circuit. 23 osc - sampling clock signal input/output pin when using two or more sampling clocks, connect via a capacitor. 24 ms - master/slave switching pin switching of master/slave functions on a sampling clock signal. h: slave operation l: master operation 25 rosc 5.6v internal pwm sampling clock frequency setting pin usually the pin is used open. to adjust an internal sampling clock frequency, connect a resister. 26 tm 0 ~ 5v audio muting constant setting pin connect a capacitor. technical note www.rohm.com 2010.05 - rev.b ? 2010 rohm co., ltd. all rights reserved. 12/17 BD5424EFS no. symbol pin voltage pin description internal equalizing circuit 27 hold 0.68vcc instantaneous power interruption detecting voltage setting pin connect a capacitor. to adjust a detecting voltage, connect a resister. 28 bsp2n - ch2 negative bootstrap pin connect a capacitor. 29, 30 vccp2n vcc ch2 negative power system power supply pin 31, 32 out2n vcc ~ 0v ch2 negative pwm signal output pin connect an output lpf. 33, 34 gndp2 0v ch2 power system gnd pin 35, 36 out2p vcc ~ 0v ch2 positive pwm signal output pin connect an output lpf. 37, 38 vccp2p vcc ch2 positive power system power supply pin 39 bsp2p - ch2 positive bootstrap pin connect a capacitor. 40 vcca vcc analog system power pin 41 filp vcc+35 12 pwm system bias pin connect a capacitor. technical note www.rohm.com 2010.05 - rev.b ? 2010 rohm co., ltd. all rights reserved. 13/17 BD5424EFS no. symbol pin voltage pin description internal equalizing circuit 42 fila 3.5v analog signal system bias pin connect a capacitor. 43 gnda 0 analog system power supply pin technical note www.rohm.com 2010.05 - rev.b ? 2010 rohm co., ltd. all rights reserved. 14/17 BD5424EFS ? vcc=10v ~ 18v gnda v c c a i n p u t 2 c h 1f 10f 10f m u t e w a r n i n g o u t p u t s l a v e m a s t e r c l k i / o r 2 5 e r r o r o u t p u t i n p u t 1 c h 0 . 1 f gndp 0.1f 2 2 k 22k 22k gnda gnda 0.1f s d 1 2 3 4 5 6 7 8 9 1 4 1 5 1 6 1 7 1 8 1 9 2 0 2 1 2 2 3 6 3 5 3 4 3 3 3 2 3 1 3 0 2 9 2 8 2 7 2 6 2 5 4 4 4 3 4 2 4 1 4 0 3 9 1 0 1 1 1 2 1 3 3 8 3 7 2 4 2 3 p w m 1 d r i v e r 1 p s o f t m u t e d r i v e r 1 n p w m 2 d r i v e r 2 p f i l p d r i v e r 2 n c l o c k c o n t r o l m u t e c o n t r o l e r r o r r a m p g e n e r a t o r g n d a v c c a w a r n i n g f i l a p r o t e c t i o n s & l o g i c u n d e r v o l t a g e p r o t e c t i o n h i g h t e m p e r a t u r e p r o t e c t i o n o u t p u t s h o r t p r o t e c t i o n o u t p u t d c v o l t a g e p r o t e c t i o n n . c . p o w e r l i m i t s d c o n t r o l p o w e r - o f f d e t e c t o r c43 1f r2 c40 c41 c42 c26 2 2 k 0 . 1 f c23 3 . 3 f c27 r4 r3 c5 + 0.1f v c c p g n d p 1f + 10f c38 c29 c28 0.1f c37 1f c39 s p 2 c h ( 4 0.15f 0.15f 1 0 h 1 0 h c35 c32 0.68f c31 l 3 1 l 3 5 0.1f vccp gndp 1f + 10f c8 c15 c17 0.1f c7 1f c6 sp 1ch (4 ? 0.15f 0.15f 10h 10h c9 c10 0.68f c13 l13 l9 1 f c44 c1 fig. 30 circuit diagram of stereo operation with 4 ? load technical note www.rohm.com 2010.05 - rev.b ? 2010 rohm co., ltd. all rights reserved. 15/17 BD5424EFS table 1 bom list of stereo operation with 4 ? load no. item part number vendor configuration value rated voltage tolerance temperature characteristics quantity reference mm inch 1 ic BD5424EFS rohm htssop-a44 - - - - 1 ic1 2 c grm21bb31h105ka12 murata 2012 0805 1f 50v 10% 10% 4 c6, c17, c28, c39 3 c grm188r11h104ka93 murata 1608 0603 0.1f 50v 10% 10% 5 c7, c15, c29, c37, c40 4 c grm21bb31h154ka88 murata 2012 0805 0.15f 50v 10% 10% 4 c9, c13, c31, c35 5 c grm188b31c105ka92 murata 1608 0603 1f 16v 10% 10% 2 c1, c44 6 c grm31mr71h684ka88 murata 3216 1206 0.68f 50v 10% 15% 2 c10, c32 7 c grm21bb31e335ka75 murata 2012 0805 3.3f 25v 10% 10% 1 c27 8 c grm188b11e104ka01 murata 1608 0603 0.1f 25v 10% 10% 3 c5, c23, c26 9 c grm21bb11c105ka murata 2012 0805 1f 16v 10% 10% 1 c41 10 c grm21bb31c106ke15 murata 2012 0805 10f 16v 10% 10% 1 c42 11 c 25svpd10m sanyo 6666 2626 10f 25v 20% 25% 3 c8, c38, c43 12 r mcr01mzpf2202 rohm 1005 0402 22k ? 50v 1% 200ppm/ 3 r2, r3, r4,r25 no. item part number vendor configuration value tolerance dc resistance rated dc current quantity reference mm 13 l a7502by-100m toko 1316.0 10h 20% 30m ? max. 5.09a max. 4 l9, l13, l31, l35 technical note www.rohm.com 2010.05 - rev.b ? 2010 rohm co., ltd. all rights reserved. 16/17 BD5424EFS 1. about absolute maximum ratings if an applied voltage or an operating temperature exceeds an absolute maximum rating, it may cause destruction of a device. a result of destruction, whether it is short mode or open mode, is not predictable. ther efore, provide a physical safety measure such as fuse, against a special mode that may violate conditions of absolute maximum ratings. 2. about power supply line as return of current regenerated by bac k emf of output coil happens, take steps such as putting capacitor between power supply and gnd as a electric pathway for the regenerated current. be sure that there is no problem with each property such as emptied capacity at lo wer temperature regarding electrolytic capacitor to decide capacity value. if the connected power supply does not have suff icient current absorption capacity, rege nerative current will cause the voltage on the power supply line to rise, which combined with the product and its peripheral circuitry may exceed the absolute maximum ratings. it is recommended to implement a physical safety measure such as the insertion of a voltage clamp diode between the power supply and gnd pins. 3. potential of gnd (11, 12, 33, 34, and 43 pins) potential of the gnd terminal must be t he lowest under any operating conditions. 4. about thermal design perform thermal design with sufficient margins, in consideration of maximum power dissipation pd under actual operating conditions. this product has an exposed fram e on the back of the package, and it is assumed that the frame is used with measures to improve efficiency of heat dissi pation. in addition to front surface of board, provide a heat dissipation pattern as widely as possible on the back also. a class-d power amplifier has heat dissipation efficiency far higher than that of conventi onal analog power amplifier and generates less heat. however, extra attention must be paid in thermal design so that a power dissipation pdiss should not exceed the maximum power dissipation pd. maximum power dissipation ?? w ta-t pd aj jmax ? tjmax: maximum temperature junction = 150[ ] ta: operating ambient temperature [ ] ja: package thermal resistance [ /w] po: output power [w] : efficiency power dissipation ?? w 1- 1 pp o diss ? ? ? ? ? ? ? ? ? ? ? 5. about operations in strong electric field note that the device may malfuncti on in a strong electric field. 6. thermal shutdown (tsd) circuit this product is provided with a built-in thermal shutdown circuit. when the the rmal shutdown circuit operates, the output transistors are placed under open status. the thermal shutdown circuit is primarily intended to shut down the ic avoiding thermal runaway under abnormal conditions with a chip temperature exceeding tjmax = 150 . 7. about shorting between pins and installation failure be careful about direction and displacement of an lsi when installing it onto the board. faulty installation may destroy the lsi when the device is energized. in addition, a foreign matter getting in between lsi pins, pins and power supply, and pins and gnd may cause shorting and destruction of the lsi. 8. about power supply startup and shutdown when starting up a power supply, be sure to place the mutex pin (pin 20) and sdx pin (pin 21), at ?l? level. when shutting down a power supply also, be sure to place the pin at ?l? level. those processes reduce pop noises generated upon turning on and off the power supply. in addition, all po wer supply pins must be star ted up and shut down at the same time. 9. about warning output pin (pin 18) and error output pin (pin 19) a warning flag is output from the warni ng output pin upon operati on of the high-temperatur e protection function and under-voltage protection function. and an error flag is output from the erro r output pin upon operation of vcc/gnd shorting protection function and speaker dc voltage applying protection function. these flags are the function which the condition of this product is shown in. the use which aimed at the protection except for this product is prohibition. 10. about n.c. pins (pin 22) the n.c. (non connection) pins are not c onnected with an internal circuit. leave the pins open or connect them to gnd. technical note www.rohm.com 2010.05 - rev.b ? 2010 rohm co., ltd. all rights reserved. 17/17 BD5424EFS b d 5 4 2 4 e f s -e 2 part no. part no. package efs:htssop-44 packaging and forming specification e2: embossed tape and reel ? order quantity needs to be multiple of the minimum quantity. r1010 a www.rohm.com ? 2010 rohm co., ltd. all rights reserved. notice rohm customer support system http://www.rohm.com/contact/ thank you for your accessing to rohm product informations. more detail product informations and catalogs are available, please contact us. notes no copying or reproduction of this document, in part or in whole, is permitted without the consent of rohm co.,ltd. the content specified herein is subject to change for improvement without notice. the content specified herein is for the purpose of introducing rohm's products (hereinafter "products"). if you wish to use any such product, please be sure to refer to the specifications, which can be obtained from rohm upon request. examples of application circuits, circuit constants and any other information contained herein illustrate the standard usage and operations of the products. the peripheral conditions must be taken into account when designing circuits for mass production. great care was taken in ensuring the accuracy of the information specified in this document. however, should you incur any damage arising from any inaccuracy or misprint of such information, rohm shall bear no responsibility for such damage. the technical information specified herein is intended only to show the typical functions of and examples of application circuits for the products. rohm does not grant you, explicitly or implicitly, any license to use or exercise intellectual property or other rights held by rohm and other parties. rohm shall bear no responsibility whatsoever for any dispute arising from the use of such technical information. the products specified in this document are intended to be used with general-use electronic equipment or devices (such as audio visual equipment, office-automation equipment, commu- nication devices, electronic appliances and amusement devices). the products specified in this document are not designed to be radiation tolerant. while rohm always makes efforts to enhance the quality and reliability of its products, a product may fail or malfunction for a variety of reasons. please be sure to implement in your equipment using the products safety measures to guard against the possibility of physical injury, fire or any other damage caused in the event of the failure of any product, such as derating, redunda ncy, fire control and fail-safe designs. rohm shall bear no responsibility whatsoever for your use of any product outside of the prescribed scope or not in accordance with the instruction manual. the products are not designed or manufactured to be used with any equipment, device or system which requires an extremely high level of reliability the failure or malfunction of which may result in a direct threat to human life or create a risk of human injury (such as a medical instrument, transportation equipment, aerospac e machinery, nuclear-reactor controller, fuel- controller or other safety device). rohm shall bear no responsibility in any way for use of any of the products for the above special purposes. if a product is intended to be used for any such special purpose, please contact a rohm sales representative before purchasing. if you intend to export or ship overseas any product or technology specified herein that may be controlled under the foreign exchange and the foreign trade law, you will be required to obtain a license or permit under the law. |
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